Putter shaft



FIG. 1 is a perspective view of a putter shaft showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a front elevational view thereof; and,

FIG. 7 is a rear elevational view thereof.

The broken line showing of a golf putter head is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a putter shaft, as shown and described. 